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VBM domobar Jr after 8 years - and some Questions on upgrades

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  • #16
    Good points - I've noticed some of the wires are touching very hot parts - and cracking a bit.
    Last year I wrapped my boiler with exhaust heat wrap - this was after my control board was replaced, and the old one completely melted. It was an easy job that makes me wonder why it's not done at the factory- cost?

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    • #17
      Sounds like trapped heat as well as wires exposed to excessive heat are a known issue to those in the game. This would more likely be the culprit rather than spikes as far as control board failure goes. Failures at approx 5 years "normal" use seems to be common, probably due to these heat issues.

      This is from a previous thread on the Vibiemme Domobar Jr discussing some issues similar to the ones in this thread-

      "When people ask me why we won’t sell it anymore they get this: We dropped it from range: Impossible to change the anti-vac and safety valve. That ground wire on the steam boiler exposed to ~123C goes crisp and results in overfills due to massive resistance. Live wires around potential water vapour. Excess heat cooks control boards. Boiler out services inevitably result in $$$$ repairs at 5 years. Refused to sell them unless VBM does something."

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      • #18
        In more than 30 years, we've had one surge to our electricity supply in Melbourne, and that was almost 30 years ago. It happened after a blackout when power was restored. And it only affected a 20 amp fuse on the 3-phase supply for the air conditioner. Nothing else damaged.

        I could be wrong, but the ubiquitous surge protector boards seen in every hardware shop, while cheap and cheap insurance I guess, are pretty much superfluous, and the faults with appliances comes not from surges but cheaply-made circuit boards with dry solder joints and cheap components.

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